How to find the maximum value from a matrix without using max syntax?
8 views (last 30 days)
Show older comments
I have to find a max value without using matlab built in max syntax.
The code I have that I want to change the max syntax to for loop is
[i j] = max(abs(A(y:n, y)));
I tried following this code I found from another question:
MaxValue = -Inf;
row = 0;
column = 0;
for y = 1:size(A, 1)
for y = 1:size(A, 2)
if A(y, y) > MaxValue
MaxValue = A(y:n, y);
row = y:n;
column = y;
end
end
end
but my code is not running. I don't know where I am going wrong.
0 Comments
Answers (3)
Cris LaPierre
on 1 Mar 2022
I suspect one issue to fix is that you use the same variable name for both loops. The variable can only hold one value at a time, so the loops are definitely not behaving as you intended.
for y = 1:size(A, 1)
for y = 1:size(A, 2)
Use a different variable for each loop.
for y1 = 1:size(A, 1)
for y2 = 1:size(A, 2)
0 Comments
Davide Masiello
on 1 Mar 2022
Edited: Davide Masiello
on 1 Mar 2022
I guess you could try something like this
A = randi(100,4,8);
for i = 1:size(A,1)
for j = 1:size(A,2)
if any(A(i,j)< A(:))
else
maxA = A(i,j);
row = i;
col = j;
end
end
end
disp(A)
disp(maxA)
disp([row col])
0 Comments
See Also
Categories
Find more on Matrix Indexing in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!